When it comes to trimming nails, while fingernails often require frequent attention, toenails, for some reason, often don't need trimming as frequently. This is because fingernails and toenails grow at different rates. Let's delve into the reasons behind this phenomenon and explore various factors related to the growth of fingernails and toenails.
Why do fingernails need to be trimmed more often than toenails? In fact, fingernails grow faster than toenails because they receive more stimulation. On average, they grow about 1.8 to 4.5 millimeters per month, which is more than twice the rate of toenail growth. Fingernails are more exposed to everyday activities, being frequently used, leading to more rapid growth.
The growth of fingernails occurs as the matrix cells at the root of the nail die, becoming keratinized and pushed outward to form the nail. With continual generation of new matrix cells, the faster they are produced, the faster the nail grows. Increased use of the hands stimulates the root of the nail, enhancing blood circulation, which promotes cell division in the matrix, ultimately accelerating nail growth. According to research from the University of North Carolina, the rate of fingernail growth in modern individuals is approximately 16% faster than in the past, attributed not only to increased protein intake but also to lifestyle changes involving frequent use of computers and mobile phones.
Moreover, the growth of both fingernails and toenails is associated with age. Typically, growth is fastest in youth, slowing down gradually after the age of 30. Additionally, exposure to ultraviolet radiation affects nail growth. Summers with ample sunlight tend to promote nail growth, whereas winters have the opposite effect due to fluctuations in hormone secretion induced by sunlight.
Fingernails and toenails serve as important indicators of our health. By examining their color, shape, thickness, etc., signs of malnutrition, anemia, infection, and more can be identified. For instance, whitening of nails may indicate malnutrition or anemia, while yellow or black discoloration could signify infection or signs of a serious illness, requiring attention.
Lastly, maintaining the health of fingernails and toenails requires proper care. Regular trimming, adequate nutrition, and vigilant observation of changes in nails are essential. Seeking immediate medical attention for any abnormalities in the nails is crucial. Despite being seemingly trivial, nails provide valuable insights into our health, and appropriately managing them is vital.
